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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: kernel security and bug fix update
Advisory ID:       RHSA-2023:4130-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:4130
Issue date:        2023-07-18
CVE Names:         CVE-2023-1281 CVE-2023-32233 
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 8.6
Extended Update Support.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat CodeReady Linux Builder EUS (v.8.6) - aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS EUS (v.8.6) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

* kernel: tcindex: use-after-free vulnerability in traffic control index
filter allows privilege escalation (CVE-2023-1281)

* kernel: netfilter: use-after-free in nf_tables when processing batch
requests can lead to privilege escalation (CVE-2023-32233)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Bug Fix(es):

* RHEL8.4 - s390/smp,vdso: fix ASCE handling (BZ#2176464)

* After powerstore LUNs are mapped,  OS crashed and host reboot.
(BZ#2179068)

* qla2xxx NVMe-FC:  WARNING: CPU: 0 PID: 124072 at
drivers/scsi/qla2xxx/qla_init.c:70 qla2xxx_rel_done_warning+0x25/0x30
[qla2xxx] (BZ#2181529)

* iscsi target deadlocks when the same host acts as an initiator to itself
(i.e. connects via 127.0.0.1) (BZ#2182095)

* Dying percpu kworkers cause issues on isolated CPUs [rhel-8] (BZ#2189597)

* Azure RHEL8: Live resize of disk does not trigger a rescan of the device
capacity (BZ#2192345)

* RHEL8.4 - kernel: fix __clear_user() inline assembly constraints
(BZ#2192604)

* RHEL8.6, lockd : oops on nlmsvc_mark_host (BZ#2196386)

* xfs: deadlock in xfs_btree_split_worker (BZ#2196392)

* Intel E810 card unable to create a MACVLAN on interface already
configured as SRIOV (BZ#2203217)

* ice: ptp4l cpu usage spikes (BZ#2203287)

* Kernel - Significant performance drop for getrandom system call when FIPS
is enabled (compared to RHEL 8.x for all x < 6.z) (BZ#2208130)

* Azure RHEL8: CVM patch list requirement-storvsc patch (BZ#2208601)

* BUG_ON "kernel BUG at mm/rmap.c:1041!" in __page_set_anon_rmap() when
vma->anon_vma==NULL (BZ#2211661)

* RHEL 8.6 opening console with mkvterm on novalink terminal fails due to
drmgr reporting failure (L3:) (BZ#2212374)

* ESXi RHEL8: Haswell generation CPU are impacted with performance due to
IBRS (BZ#2213367)

* Hyper-V RHEL-8: Fix VM crash/hang Issues due to fast VF add/remove events
(BZ#2216544)

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

2181847 - CVE-2023-1281 kernel: tcindex: use-after-free vulnerability in traffic control index filter allows privilege escalation
2196105 - CVE-2023-32233 kernel: netfilter: use-after-free in nf_tables when processing batch requests can lead to privilege escalation

6. Package List:

Red Hat Enterprise Linux BaseOS EUS (v.8.6):

Source:
kernel-4.18.0-372.64.1.el8_6.src.rpm

aarch64:
bpftool-4.18.0-372.64.1.el8_6.aarch64.rpm
bpftool-debuginfo-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-core-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-cross-headers-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-debug-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-debug-core-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-debug-debuginfo-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-debug-devel-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-debug-modules-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-debug-modules-extra-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-debuginfo-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-devel-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-headers-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-modules-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-modules-extra-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-tools-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-tools-debuginfo-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-tools-libs-4.18.0-372.64.1.el8_6.aarch64.rpm
perf-4.18.0-372.64.1.el8_6.aarch64.rpm
perf-debuginfo-4.18.0-372.64.1.el8_6.aarch64.rpm
python3-perf-4.18.0-372.64.1.el8_6.aarch64.rpm
python3-perf-debuginfo-4.18.0-372.64.1.el8_6.aarch64.rpm

noarch:
kernel-abi-stablelists-4.18.0-372.64.1.el8_6.noarch.rpm
kernel-doc-4.18.0-372.64.1.el8_6.noarch.rpm

ppc64le:
bpftool-4.18.0-372.64.1.el8_6.ppc64le.rpm
bpftool-debuginfo-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-core-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-cross-headers-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-debug-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-debug-core-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-debug-devel-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-debug-modules-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-debuginfo-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-devel-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-headers-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-modules-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-modules-extra-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-tools-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-tools-libs-4.18.0-372.64.1.el8_6.ppc64le.rpm
perf-4.18.0-372.64.1.el8_6.ppc64le.rpm
perf-debuginfo-4.18.0-372.64.1.el8_6.ppc64le.rpm
python3-perf-4.18.0-372.64.1.el8_6.ppc64le.rpm
python3-perf-debuginfo-4.18.0-372.64.1.el8_6.ppc64le.rpm

s390x:
bpftool-4.18.0-372.64.1.el8_6.s390x.rpm
bpftool-debuginfo-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-core-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-cross-headers-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-debug-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-debug-core-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-debug-debuginfo-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-debug-devel-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-debug-modules-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-debug-modules-extra-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-debuginfo-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-devel-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-headers-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-modules-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-modules-extra-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-tools-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-tools-debuginfo-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-zfcpdump-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-zfcpdump-core-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-zfcpdump-devel-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-zfcpdump-modules-4.18.0-372.64.1.el8_6.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-372.64.1.el8_6.s390x.rpm
perf-4.18.0-372.64.1.el8_6.s390x.rpm
perf-debuginfo-4.18.0-372.64.1.el8_6.s390x.rpm
python3-perf-4.18.0-372.64.1.el8_6.s390x.rpm
python3-perf-debuginfo-4.18.0-372.64.1.el8_6.s390x.rpm

x86_64:
bpftool-4.18.0-372.64.1.el8_6.x86_64.rpm
bpftool-debuginfo-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-core-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-cross-headers-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-debug-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-debug-core-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-debug-debuginfo-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-debug-devel-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-debug-modules-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-debug-modules-extra-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-debuginfo-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-devel-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-headers-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-modules-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-modules-extra-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-tools-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-tools-debuginfo-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-tools-libs-4.18.0-372.64.1.el8_6.x86_64.rpm
perf-4.18.0-372.64.1.el8_6.x86_64.rpm
perf-debuginfo-4.18.0-372.64.1.el8_6.x86_64.rpm
python3-perf-4.18.0-372.64.1.el8_6.x86_64.rpm
python3-perf-debuginfo-4.18.0-372.64.1.el8_6.x86_64.rpm

Red Hat CodeReady Linux Builder EUS (v.8.6):

aarch64:
bpftool-debuginfo-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-debug-debuginfo-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-debuginfo-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-tools-debuginfo-4.18.0-372.64.1.el8_6.aarch64.rpm
kernel-tools-libs-devel-4.18.0-372.64.1.el8_6.aarch64.rpm
perf-debuginfo-4.18.0-372.64.1.el8_6.aarch64.rpm
python3-perf-debuginfo-4.18.0-372.64.1.el8_6.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-debuginfo-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-372.64.1.el8_6.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-372.64.1.el8_6.ppc64le.rpm
perf-debuginfo-4.18.0-372.64.1.el8_6.ppc64le.rpm
python3-perf-debuginfo-4.18.0-372.64.1.el8_6.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-debug-debuginfo-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-debuginfo-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-tools-debuginfo-4.18.0-372.64.1.el8_6.x86_64.rpm
kernel-tools-libs-devel-4.18.0-372.64.1.el8_6.x86_64.rpm
perf-debuginfo-4.18.0-372.64.1.el8_6.x86_64.rpm
python3-perf-debuginfo-4.18.0-372.64.1.el8_6.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2023-1281
https://access.redhat.com/security/cve/CVE-2023-32233
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2023 Red Hat, Inc.
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